1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Katen [24]
4 years ago
5

Solve for x. 3^x−1=9^x+2 Enter your answer in the box.

Mathematics
1 answer:
slava [35]4 years ago
4 0

Answer:

-5 =x

Step-by-step explanation:

3^(x-1) = 9^(x+2)

Replace 9 with 3^2

3^(x-1) = 3^2^(x+2)

We know that a power to a power means the powers are multiplied

a^b^c = a^(b*c)

3^(x-1) = 3^(2x+2)

When the bases are the same, the powers have to be the same

x-1 = 2x+4

Subtract x from each side

x-x-1 =2x-x+4

-1 =x+4

Subtract 4 from each side

-1-4 =x+4-4

-1-4 = x

-5 =x

You might be interested in
I 100 points for this one because it is very personal.
konstantin123 [22]

Answer:

Hmmm, Well this is my personal opinion that you should figure this out yourself, this is a question only you can answer.

Step-by-step explanation:

P.S Can I have brainliest?

4 0
3 years ago
Read 2 more answers
Which statement is not always true?
earnstyle [38]
A. True. Summing any rational number with an irrational number leads to an irrational result. The proof is a bit lengthy so I'm leaving it out. 

B. True. Adding p/q with r/s leads to (ps+qr)/(qs) which is rational. Keep in mind that q and s cannot be zero.

C. False. One counter example is sqrt(3)*sqrt(12) = sqrt(3*12) = sqrt(36) = 6. This shows the product of two irrational numbers, in this case sqrt(3) and sqrt(12), multiplying to get a rational result 6 = 6/1.

D. True. Multiplying p/q and r/s leads to (p*r)/(q*s) which is rational. Keep in mind that q and s cannot be zero.

----------------------------------------------------------------------

The final answer is choice C
6 0
3 years ago
Which image(s) represent similar figures (choose all that apply)
Ivenika [448]
B & C since both of them are like triangle figures.
6 0
3 years ago
Read 2 more answers
Simplify and express the answer as a decimal. 3(2.7+5)−2 Enter your answer in the box.
Volgvan
First, add 2.7 and 5 to get 7.7. Then, multiply 7.7 and 3 to get 23.1. Finally, subtract 2 from 23.1.

If you're distributing, then multiply 3 by 2.7 and 5. Then, add and subtract the sum by 2.

Hope this helped!
5 0
3 years ago
A recipe calls for 6 cups of water and 4 cups of flour. What is the ratio of water to flour? Simplify
jekas [21]
The answer is 6/4 but simplified it is 3/2
7 0
3 years ago
Read 2 more answers
Other questions:
  • If you need $8000 to travel to Europe after you graduate in 4 year. How much would your monthly deposits need to be if your acco
    8·1 answer
  • How to work the problem 44,756÷167
    15·1 answer
  • An astronaut is returning to earth in a spacecraft. If the spcecraft is descending at a rate of 13.81 kilometers per minute, wha
    10·1 answer
  • There are some nickels, dimes, and quarters in a large piggy bank. For every 2 nickels there are 3 dimes. For every 2 dimes ther
    10·1 answer
  • as part of his workout Jamal does two sets of 25 push-ups. if he does this 10 times each month, how many push ups does he do eac
    8·2 answers
  • Which of the following ordered pair could NOT be included in this set if it is a function?
    14·1 answer
  • Pleasee help me !!!!!! I need this answer now !!!<br> What is the measurement of
    8·1 answer
  • Challenge A bag contains pennies, nickels dimes, and quarters. There are 50 coins in all of the
    14·1 answer
  • Estimate the answer to the following calculation<br><br>​
    14·2 answers
  • Combine like terms to create an equivalent expression.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!